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Disable floating-point expression contraction on gcc builds.

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While this shouldn't be a problem with C code, better be safe than
sorry. @DanielGibson stumbled over this while debugging some strange
RB-Doom3 / dhewm3 issues with gcc. See this bug report for details:
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100839
This commit is contained in:
Yamagi 2021-06-06 18:40:47 +02:00
parent 228c6060f3
commit bb7bf8ef9e
1 changed files with 7 additions and 0 deletions
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7
Makefile
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@ -235,6 +235,13 @@ ifeq ($(YQ2_ARCH), x86_64)
override CFLAGS += -mfpmath=sse
endif
# Disable floating-point expression contraction. While this shouldn't be
# a problem for C (only for C++) better be safe than sorry. See
# https://gcc.gnu.org/bugzilla/show_bug.cgi?id=100839 for details.
ifeq ($(COMPILER), gcc)
override CFLAGS += -ffp-contract=off
endif
# ----------
# Systemwide installation.